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Finding the Fourth Proportional to 342,618.60, 513,960.30 and 93,300.60

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Solution

The fourth proportional to 342,618.60, 513,960.30 and 93,300.60 is: 139,959.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,618.60 : 513,960.30 = 93,300.60 : x
  2. Step 2: Convert to fraction form
    342,618.60/513,960.30 = 93,300.60/x
  3. Step 3: Cross multiply
    342,618.60x = 513,960.30 × 93,300.60
  4. Step 4: Simplify right side
    342,618.60x = 47,952,804,366.18
  5. Step 5: Solve for x
    x = 47,952,804,366.18/342,618.60
  6. Step 6: Final answer
    x = 139,959.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.